1. If you want to remove the error from all the elements in the project please select all the elements from 3D view and then click check box number (1) All Selected Families and click check box (a) to erase the value- if you want to erase the value in mark parameter or check box (b) give the numeric value sequence- to give automatic numeric sequence then press ok. 

2. If you want to remove the error only from the loadable families only please click check box number (2) only loadable families and click check box (a) erase the value- if you want to erase the value in mark parameter or check box (b) to give the numeric value sequence- to give automatic numeric sequence then press OK. 

Please note: You can watch the video file to help you to understand the tool but you need Windows Media Player on your computer. 

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10) and uninstall as you would any other application from your system.